mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 20:30:57 +07:00
709972b1f6
We have had this convenient macro _ASM_EXTABLE() to generate exception table entry in inline assembly. Make it also usable for pure assembly. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
#ifndef _ASM_X86_ASM_H
|
|
#define _ASM_X86_ASM_H
|
|
|
|
#ifdef __ASSEMBLY__
|
|
# define __ASM_FORM(x) x
|
|
# define __ASM_EX_SEC .section __ex_table, "a"
|
|
#else
|
|
# define __ASM_FORM(x) " " #x " "
|
|
# define __ASM_EX_SEC " .section __ex_table,\"a\"\n"
|
|
#endif
|
|
|
|
#ifdef CONFIG_X86_32
|
|
# define __ASM_SEL(a,b) __ASM_FORM(a)
|
|
#else
|
|
# define __ASM_SEL(a,b) __ASM_FORM(b)
|
|
#endif
|
|
|
|
#define __ASM_SIZE(inst) __ASM_SEL(inst##l, inst##q)
|
|
#define __ASM_REG(reg) __ASM_SEL(e##reg, r##reg)
|
|
|
|
#define _ASM_PTR __ASM_SEL(.long, .quad)
|
|
#define _ASM_ALIGN __ASM_SEL(.balign 4, .balign 8)
|
|
|
|
#define _ASM_MOV __ASM_SIZE(mov)
|
|
#define _ASM_INC __ASM_SIZE(inc)
|
|
#define _ASM_DEC __ASM_SIZE(dec)
|
|
#define _ASM_ADD __ASM_SIZE(add)
|
|
#define _ASM_SUB __ASM_SIZE(sub)
|
|
#define _ASM_XADD __ASM_SIZE(xadd)
|
|
|
|
#define _ASM_AX __ASM_REG(ax)
|
|
#define _ASM_BX __ASM_REG(bx)
|
|
#define _ASM_CX __ASM_REG(cx)
|
|
#define _ASM_DX __ASM_REG(dx)
|
|
#define _ASM_SP __ASM_REG(sp)
|
|
#define _ASM_BP __ASM_REG(bp)
|
|
#define _ASM_SI __ASM_REG(si)
|
|
#define _ASM_DI __ASM_REG(di)
|
|
|
|
/* Exception table entry */
|
|
#ifdef __ASSEMBLY__
|
|
# define _ASM_EXTABLE(from,to) \
|
|
__ASM_EX_SEC ; \
|
|
_ASM_ALIGN ; \
|
|
_ASM_PTR from , to ; \
|
|
.previous
|
|
#else
|
|
# define _ASM_EXTABLE(from,to) \
|
|
__ASM_EX_SEC \
|
|
_ASM_ALIGN "\n" \
|
|
_ASM_PTR #from "," #to "\n" \
|
|
" .previous\n"
|
|
#endif
|
|
|
|
#endif /* _ASM_X86_ASM_H */
|